Rotary saw



Dec. 16, 19 0.

ROTARY SAW Filed Oct. .11, 1929 3 Sheets-Sheet l Inventor B L. ABORNDec. 16, 1930.

ROTARY SA W- Filed Oct. 11, 1929 3 Sheets-Sheet 2 ////r/r////// k l wylllllll zllalln'dy Inventor fierirand .Zflarzz Bygmm A ttor ney Dec. 16,1930. 1 r ABQRN 1,785,065

ROTARY SAW Filed Oct. 11, 1929 3 Sheets-Sheet 3 Inventor Keri/andZ.Ab0in/ A itorncy Patented Dec. 16, 1930 UNITED STATES Harm]: L. ABORN,or nrmrasr, mama ROTARY SAW Application filed October 11, 1929. SerialI0. 398,923.

I electrically operated-drill or the like.

/ Another very important object of the inventlon resides in theprovision of an operating mechanism of this nature which is simple inits construction, compact and convenient in its arrangement of parts,strong and durable, thoroughly efficient and reliable in use andoperation, handy, and otherwise well adapted to the purpose for which itis designed.

' tion,

Figure 2 is a longitudinal section therethrough taken substantially onthe line 2-2 of Figure 1,

Figure 3 is a; transverse section taken substantially on the line 33 ofFigure 1,

Figure 4: is an end elevation of the mechanism.

a Figure 5 is a side elevation thereof,

Flgure 6 is a detail section taken sub-- stantially on the line 66 ofFigural,

Figure 7 is a perspective view of the sleeve. Figure 8 is a perspectiveview of the depth gauge, and

Figure 9 is a perspective view of the spindle.

Referring to the drawing in detail it will be seen that the numeral 5denotes a bearin having a reduced portion over which one end of a sleeve6 may be disposed and locked in place by means of a set screw 7. Thereis Journaled in the bearin 5 a shaft 8 and the end of this shaft wit 'nthe sleeve 6 has formed therein a square socket 9 while on the other endofthe shaft there is fixed a beveled gear 10.

With the above and numerous other ob-v ects in view as will appear asthe descrip- Arms 11 and 12 extend from opposite sides of the bearingand are curved forwardly and terminate respectively in bearings 14 and15. A shaft 16 is journaled in the bearings 14 and 15 to be at rightangles to the shaft PATIENT oFricE 'l 8 and has a beveled gear 17thereon in mesh with the beveled gear 10.

On the end of the shaft 16 to the outer side of the bearing 14 there ismounted a circular or disk saw 18 or any other suitable or desired tooland this saw is held in place by means of a nut 19 threaded on said endof the shaft. An L-shaped depth gauge 19 has its shorter leg extendedthrough an open-- ing in the bearing 15 and. is adjustably locked inplace by meansof a set screw 20 so that the longer leg extends along theshaft 16 the desired distance therefrom.

A sleeve 22 is slidable on the lon er leg of the depth gauge 19 and heldin di erent adjusted positions by means of a set screw 23. A width gauge24 is mounted on the sleeve 22. A shield 25 is disposed over the upperportion of the saw 18 and held in this position by means of bracket 26secured to one side of the sleeve 6.

In'the present exemplification of the invention the. sleeve 6 is securedon an electric drill 2'] by means of a set screw 28 so that the chuck 29of the drill is disposed inside the sleeve 6 and has one end of aspindle 30 locked therein, the other end thereof being squared as at 31and received in the socket 9.

Thus it will be seen that when the electric drill is turned on, thespindles 30 will be rotated thereby rotating the shaft 9, the gearings10 and 1'? and the shaft 16 to rotate the saw 18. Although I havespecifically exemplified the invention herein with the saw it is to beunderstood that other rotary tools of advantage enumerated as desirablein the statement of the invention and the above description.

It will be apparent that chan es in the details of construction, in thecom ination and arrangement of parts may be resorted to withoutdeparting from the spirit or scope of the invention as hereinafterclaimed or sacrificin any of its advantages.

avlng thus described my invention, what I claim as new is:

A saw of the character described comprising a supporting sleeve, abearing in one end thereof, arms projecting from opposite sides of thebearing, aligned bearings on the free ends of the arms, a shaftextending rotatably through the aligned bearings, means operativelyconnecting the shaft to a source of power for actuation thereby, a sawfixed on the shaft adjacent one of the aligned bearings, a substantiallyL-shaped depth gauge having one of its legs extending for slidingadjustment through the other aligned bearing, the other leg of the depthgauge disposed parallel to the shaft and terminating in spaced relationto the saw, means for securing the depth gauge in adjusted position, asleeve mounted for longitudinal sliding adjustment on said other leg ofthe depth gauge, means for securin the sleeve in adjusted position, anda Width gau e formed integrally on the sleeve and extending therefrom inparallelism with the other leg of the depth gauge.

In testimony whereof I afiix my si ature.

BERTRAND L. AB RN.

